Gathering Other Station Data

There's lot's of nice data out there...let's use it!

receiver networks: IGS, UNAVCO, CORS

format: RINEX

UNAVCO

UNAVCO Polar Project

GNET

ANET

  • Various networks with standardized equipment and maintenance
  • 1-second rate
  • GPS + GLO

OFFLINE

CORS

  • Very dense U.S. network
  • 1, 5, 15, 30-second sampling rates
  • Mainly GPS + GLO

IGS

  • Collection of monitoring stations from other institutions
  • Some new data here, but need to be careful about data overlap
  • Unsure of rate of old data -- seems to vary
  • Has the most multi-GNSS: GPS+GLO+GAL+BDS+QZSS

Getting Station Coordinates

UNAVCO:

ftp://data-out.unavco.org/pub/products/position/gage_gps.igs08.txt

CORS:
ftp://cors.ngs.noaa.gov/cors/coord/coord_08/igs08_geo.comp.txt

 

IGS:

- I copied a table I found online into a text file located here:

/media/share/brianbw/igs-stations.txt

 

Getting Station Data

UNAVCO:

ftp://geodesy.noaa.gov/cors/rinex/<yyyy>/<doy>/<station_id>/<*.o>

CORS:
ftp://data-out.unavco.org/pub/rinex/obs/
<yyyy>/<doy>/<station_id>/<*.o>

 

IGS:

ftp://cddis.gsfc.nasa.gov/pub/gps/data/daily/<yyyy>/<doy>/<yy>o/<station_id><doy>.<yy>o.Z

Getting Station Data

class FTPDownloader
class DataFileManager
  • Takes path expression (e.g. /<yyyy>/<doy> for path of 4-digit year followed by day-of-year)
  • Automatically substitutes correct date and station parameters in path expression
  • Mirrors FTP site locally (e.g. on the work server)
  • Uses DataFileManager
  • Automatically downloads and extracts data from FTP site
  • Will check if data already downloaded

Getting Station Data

FTPDownloader
DataFileManager
  • See GITLAB: brianbw/data-utils
  • I use these utilities for **all** FTP data
    • SP3 files
    • DCB files
    • ANTEX files
    • IONEX files
  • Automates workflow
    • don't have to worry about
      • "do I still have that data downloaded?"
      • "I need to change to different date..."